Convert centiinch to Earth's polar radius
Please provide values below to convert centiinch [cin] to Earth's polar radius [R_p], or Convert Earth's polar radius to centiinch.
How to Convert Centiinch to Earth's Polar Radius
1 cin = 3.99575110076257e-11 R_p
Example: convert 15 cin to R_p:
15 cin = 15 × 3.99575110076257e-11 R_p = 5.99362665114386e-10 R_p
Centiinch to Earth's Polar Radius Conversion Table
| centiinch | Earth's polar radius |
|---|
Centiinch
A centiinch is a unit of length equal to one-hundredth of an inch.
History/Origin
The centiinch is not a standard unit of measurement but is a logical subdivision of the inch.
Current Use
The centiinch is rarely used.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.